Make `supabase start` faster

Start from the GitHub Actions workflow shown in the issue, especially the setup-cli action and the supabase start and supabase status commands. Investigate whether the CLI or action supports caching that preserves the needed service role key; done means documenting a supported setup that measurably reduces startup time without losing the status output.

I'd like to make supabase start faster in my github actions CI. I'm running the following workflow in github actions:

    steps:
      - name: Checkout repository
        uses: actions/checkout@v4

      - name: Setup Node.js 22
        uses: actions/setup-node@v4
        with:
          node-version: 22
          cache: 'npm'

      - name: Install dependencies
        run: npm ci

      - name: Setup Supabase
        uses: supabase/setup-cli@v1
        with:
          version: latest

      - name: Start Supabase
        run: supabase start

And the last step supabase start takes about 3min 30secs. I'm running supabase start (and not supabase db start) to be able to retrieve a service role key with supabase status afterwards.

Is it possible to somehow reduce the time it takes for this startup, with caching maybe? Has someone set this up properly already? Would be nice to add this to the documentation if so.